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Lower Big Blue WatershedDraft Escherichia coli (E. coli) TMDL
Stakeholder Meeting
May 7, 2014
Agenda
• Watershed Overview
• Listing Information
• Total Maximum Daily Load (TMDL) Allocations
• Implementation
• Schedule
Watershed Overview• Watershed Size• Watershed Location• Lower Big Blue Subwatersheds• General Watershed Land Use
Watershed Overview
County area– 19.14% in Hancock– 5.10% in Henry– 1.81% in Johnson– 29.42% in Rush– 44.35% in Shelby
Municipalities– Shelbyville– Shirley– Morristown– Edinburgh
Drains approximately 280 square miles
• Subwatersheds– Headwaters Little Blue River– Beaver Meadow Creek– Gilson Creek- Little Blue River– Manilla Branch- Little Blue River– Town of Rays Crossing- Little Blue River– Headwaters Six Mile Creek– Anthony Creek- Six Mile Creek– Nameless Creek– Prairie Branch- Big Blue River– Foreman Branch- Big Blue River– DePrez Ditch- Big Blue River– Shaw Ditch- Big Blue River
Land Use
Land Use
Watershed
Area
PercentAcresSquare Miles
Open Water730.34 1.14 0.41
Developed Land13,656.60 21.34 7.61
Forested Land12,424.31 19.41 6.93
Grasslands and Shrubs1,649.28 2.58 0.92
Pasture/Hay6,789.05 10.61 3.79
Agricultural Lands14,3430.22 224.11 80.01
Wetlands592.02 0.93 0.33
TOTAL17,9271.82 280.11 100.00
Listing InformationLower Big Blue Watershed
Definition of a TMDL
• Clean Water Act requires that a TMDL be allocated as follows:– TMDL = WLA + LA + MOS– Wasteload allocations (WLA) for “point sources”
(regulated under NPDES)– Load allocations (LA) for nonpoint sources and
natural background– MOS for margin of safety
Water Quality StandardsEscherichia coli (E. coli)
April 1 through October 31, E. coli shall not exceed 125 colony forming units (cfu) per 100 milliliters (mL) as a geometric mean based on not less than 5 samples equally spaced over a 30-day period nor exceed 235 cfu per 100 mL in any 1 sample in a 30-day period
• Impaired Segments-72 Miles E. coli-15 Miles PCB Fish Tissue-8 Miles Total Mercury
• TMDL only addresses E. coli
Assessment of Water Quality
2012 listings reassessed – E. coli sampling performed by IDEM in 2010
• 21 sites for E. coli• Sampled 5 consecutive weeks
– September 20, 2010 – October 18, 2010
– 2013 East Fork White River sampling• 2 sites sampled in Lower Big Blue River watershed
– July 16, 2013- August 13, 2013
Site #
L-Site # Stream Name Road Name
1 WED020-0031 Sixmile Creek CR 1050 E
2 WED020-0032 Dilly Creek CR 200 S
3 WED020-0033 Nameless Creek CR 400 S
4 WED020-0001 Sixmile Creek CR 800 E
5 WED030-0029 Little Blue River CR 150 W
6 WED030-0030 Little Blue River CR 300 N
7 WED030-0031 Beaver Meadow Cr CR 100 N
8 WED030-0026 Little Blue River CR 400 N
9 WED030-0032Tributary of Little Blue
RiverUnion Rd
10 WED030-0033 Little Blue River CR 200 N
11 WED020-0014 Foremans Branch Knighthood Grove Rd
12 WED020-0003 Big Blue River Morristown Rd
13 WED-02-0001 Little Blue River Franklin St
14 WED-08-0002 Big Blue River Noble St
15 WED-08-0003 Big Blue River CR 575 E
16 WED-08-0001 Big Blue River CR 100 S
17 WED050-0033 Howell Ditch Manetta Rd
18 WED050-0008 Big Blue River CR 550 S
20 WED050-0035 Big Blue River SR 252
21 WED-02-0003 Little Blue River CR 400 W
22 WED-08-0004 Sixmile Creek CR 900 E
E. coli Data• IDEM sampled in 2010, 2013• Geometric mean calculated for each
site– 7 sites reported meeting the
standard in 2010– 14 sites reported not meeting
the standard in 2010– 2 sites reported not meeting the
standard in 2013
• Highest geometric mean = 1215.7– Site 21
• Lowest geometric mean = 30.16– Site 1
• Highest single sample = 2419.6– Sites 3, 10
• Lowest single sample = 10.8– Site 1
E. coli Data
• Impaired Segments-256 Miles E. coli-15 Miles PCB Fish Tissue-8 Miles Total Mercury
• TMDL only addresses E. coli
TMDL Allocations
Lower Big Blue River Sources of E. coliPoint Sources• Municipal NPDES Permits
– 5 permitted WWTPs
• MS4 Permits– 2 permitted MS4s
Nonpoint Sources• Land use Practices: Agricultural, Forested, Urban• Wildlife• CFOs
– 12 permitted CFOs
• Septic Systems
Point Sources• Municipal NPDES Permits
– IN0031593- Eastern Hancock Jr/Sr High School
– IN0024503- Shirley WWTP– IN0023841- Morristown WWTP– IN0032867- Shelbyville WWTP– IN0020184- Edinburgh WWTP
• MS4 Permit– INR040051- Shelbyville– INR040026- Edinburgh
Nonpoint Sources• Land Use Practices
– Agricultural– Forested– Urban
• CFOs– 184- David Vanosdol– 637- Janes Brothers– 1901- SSZ Enterprises– 2208- Jarrod Law and Michael Pauszek– 2950- Ronald Sullivan– 4448- Jeff and Bruce Muegge– 4623- Bob White Farm– 1939- Signature Farms Morristown– 2581- Lewis Pork Farm LLC– 4909- William E. Smith Farm 3– 6435- J & J Livestock LLC– 6582- Pork in Blue River LLC
• Septic Systems• Tile Drains• Wildlife
Lower Big Blue River TMDL AllocationsLoad Allocations
– Agricultural Run-off– Failing Septic Systems– Livestock– Tile Drains– Urban Run-off– Wildlife– Forested
Precipitation
• Many sources of pollution are impacted by precipitation
• A path for pollutant to enter a waterbody is through rain and snow melt
• Information on precipitation used with the Load Duration Curve will give a better overall sense of flow conditions in stream
Flow
• The long history of flow gages provides a valuable tool in evaluating water quality data
• USGS flow gages provide a consistent high quality source of flow information
• The large network of flow gages means that finding a representative flow gage is possible
Upstream Downstream
Load Reductions NeededHUC 12 Minimum
[CFU/100mL]Maximum
[CFU/100mL]Geometric Mean
[CFU/100mL]% Reduction to meet WQS
Headwaters Little Blue River 29.2 1986.6 141.12 11.42
Beaver Meadow Creek 95.9 435.2 148.73 15.96
Gilson Creek- Little Blue River 22.6 2419.6 > 1215.77 0
Manilla Branch- Little Blue River 28.8 325.5 118.93 0
Town of Rays Crossing- Little Blue River 28.8 1553.1 360.57 65.33
Headwaters Six Mile Creek 10.8 77.6 30.16 0
Anthony Creek- Six Mile Creek 57.1 1732.9 380.65 62.51
Nameless Creek 104.6 2419.6 > 460.27 72.84
Praire Branch- Big Blue River 146.7 435.2 281.24 55.55
Foreman Branch- Big Blue River 37.7 1119.9 191.56 34.75
DePrez Ditch- Big Blue River 60.9 214.2 130.92 4.52
Shaw Ditch- Big Blue River 71.2 146.7 114.2 0
Implementation
Implementation• Implementation of TMDL expected to occur
via ongoing and new watershed management activities:– Outreach, education, and training– Agricultural conservation practices– Urban storm water management– Control of failing septic systems– Forestry BMPs
Potential Priority Implementation AreasSubwatershed
PPIA Rank
Load reduction(Billion MPN/Day
% Reduction Implementation Strategies
DePrez Ditch-Big Blue River 1 42.76 93.24%
Outreach, Education, and TrainingStream Fencing
Storm water planning and managementCover Crops
Manure handling, storage, treatment, and disposalConservation tillage/ residue management
Grassed WaterwaysPrescribed Grazing
Septic System EducationConservation Easements
Comprehensive Nutrient Management PlansConstructed WetlandsHeavy Use Area Pads
Pasture and Hay PlantingConservation Crop Rotation
Riparian BuffersFilter Strips
Precision Agriculture
Prairie Branch-Big Blue River 2 22.43 51.59%
Anthony Creek-Six Mile Creek 3 7.73 64.69%
Town of Rays Crossing-Little Blue River
4 5.60 72.07%
Nameless Creek 5 4.39 72.80%
Manilla Branch-Little Blue River 6 1.87 45.17%
Beaver Meadow Creek 7 0.32 16.24%
Headwaters Little Blue River 8 0.22 11.58%
Gilson Creek-Little Blue River 9 0 0
Headwaters Six Mile Creek 10 0 0
Shaw Ditch-Big Blue River 11 0 0
Foreman Branch-Big Blue River 12 0 0
Schedule
Lower Big Blue River TMDL Schedule
• Sampling Completed September 2010 and 2013
• Draft TMDL Meeting: May 7, 2013
• 30-Day Comment Period: May 7– June 6
– www.idem.in.gov/nps/3914.htm
– Final TMDL Report Submittal to U.S. Environmental Protection Agency (U.S.EPA): July 2014
TMDL Project ManagerCory Fischer
TMDL Project ManagerOffice of Water QualityIndiana Department of Environmental Management100 N. Senate Ave.Indianapolis, Indiana 46204-2251
PH: (317) 308-3184FX: (317) 308-3219E MAIL: [email protected]/2347.htm